36 lines
863 B
Rust
36 lines
863 B
Rust
pub mod threads;
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use osmium::{entity::Component, renderer::Point};
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pub struct Velocity(pub Point<i32>);
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impl Component for Velocity {
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fn tick(&mut self, entity: &std::sync::Arc<osmium::entity::Entity>, tick: u16) {
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let mut position = entity.position();
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apply_velocity(tick, self.0.x, &mut position.x);
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apply_velocity(tick, self.0.y, &mut position.y);
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}
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fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
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self
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}
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}
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fn apply_velocity(tick: u16, velocity: i32, x: &mut u16) -> bool {
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let abs_v = velocity.abs();
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if abs_v == 0 {
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return false;
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}
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let interval = (1000 / abs_v).max(1);
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if tick as i32 % interval == 0 {
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if velocity > 0 {
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*x = x.saturating_add(1);
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} else {
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*x = x.saturating_sub(1);
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}
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return true;
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}
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false
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}
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